Home / 208,124.19-287,211.89-112,631.58

Finding the Fourth Proportional to 208,124.19, 287,211.89 and 112,631.58

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Solution

The fourth proportional to 208,124.19, 287,211.89 and 112,631.58 is: 155,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,124.19 : 287,211.89 = 112,631.58 : x
  2. Step 2: Convert to fraction form
    208,124.19/287,211.89 = 112,631.58/x
  3. Step 3: Cross multiply
    208,124.19x = 287,211.89 × 112,631.58
  4. Step 4: Simplify right side
    208,124.19x = 32,349,129,247.07
  5. Step 5: Solve for x
    x = 32,349,129,247.07/208,124.19
  6. Step 6: Final answer
    x = 155,431.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.